Method for the preparation of organosilanes containing methacryloxy or acryloxy groups

US4946977A · kind A · utility

Assignee

• Huels Troisdorf AG · DE

Inventors

• Gunther Bernhardt · Sankt Augustin, DE
• Jurgen Amort · Troisdorf, DE
• Margret Haas · Rübhausen, DE
• Horst Hanisch · Hennef (Sieg), DE
• Heinz Kragl · Troisdorf, DE

Key dates

• Filing date: Sep 19, 1988
• Grant date: Aug 7, 1990
• Expiry date: Sep 19, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/1892
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention is in the preparation of methacrylic or acryloxyalkylalkoxysilanes by the reaction at a temperature of from 80.degree. and 130.degree. C. of an alkali (meth) acrylate with a halogen alkylalkoxysilane in the presence of a quaternary ammonium salt which has long-chin alkyl moieties, in which the sum of all carbon atoms is between 10 and 40 as a phase-transfer catalyst. In the new procedure no solvents need to be used. The yields are better than 95%.